High Quality MaterialThe solar system planetarium DIY model is made of high quality plastic material, eco-friendly and durable, specially designed for scientific experiments. SafeAll the parts of the astronomical toys are processed by smooth polished and softly rounded edges, safe for children. Educational ToyAn intuitive teaching model that can vividly depict the relative movement between the earth, the moon, and the sun. Let Kids understand the earth, the moon, the sun movement rules. Development ToyCultivate your child's hands-on ability and stimulate interest in learning. Cultivating children's interest in learning and desire for knowledge. Improve children's sense of innovation and ability, strengthen the cultivation of practicalability. Perfect GiftIt's good for children's intellectual development and can help develop parent-child relationships. It can encourage children to explore solar system, while being creative and using their imaginations to have fun. It is a good gift for kids.